50G QSFP28 SR 850nm 100m DOM Transceiver, 100% Compatible with NVIDIA Mellanox ConnectX-5/6 & SwitchX-2
50G QSFP28 SR 850nm 100m DOM Transceiver, 100% Compatible with NVIDIA Mellanox ConnectX-5/6 & SwitchX-2
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50G QSFP28 SR 850nm 100m | 100% Compatible with NVIDIA Mellanox ConnectX-5/6 & SwitchX-2
OptiSolid 50G QSFP28 SR module is fully tested and programmed for NVIDIA Mellanox devices, including ConnectX-5/6 series adapters, SwitchX-2 switches, and all Mellanox 50G QSFP28 ports. Plug-and-play, no compatibility errors, no custom firmware, no alarms — guaranteed to work with Mellanox firmware without any issues.
- ✅ 100% Compatible with NVIDIA Mellanox ConnectX-5/6, SwitchX-2 & Mellanox OS
- ✅ 50G PAM4 modulation, 850nm VCSEL, 100m over OM4 multimode fiber (70m over OM3)
- ✅ Direct replacement for Mellanox LinkX OEM module: MFA5A00-C001
- ✅ Full DOM / DDM monitoring support (temperature, voltage, Tx/Rx power) via Mellanox CLI & GUI
- ✅ Hot-pluggable, zero configuration — works with Mellanox auto-negotiation
- ✅ Commercial temp: 0°C ~ 70°C (Industrial -40°C~85°C available)
- ✅ CE, FCC, RoHS certified
- ✅ 5-Year Warranty + 90-Day Free Returns
Full Compatibility List
Mellanox Devices with 50G QSFP28 Ports:
- ConnectX-5: MCX512A-ACAT, MCX512A-ACBT, MCX512A-ACHT, MCX512A-ACQT, MCX512A-CCAT
- ConnectX-6: MCX612106A-ADAT, MCX612106A-ADBT, MCX612106A-ADHT, MCX612106A-ADQT
- SwitchX-2: SN2700, SN2410, SN2100, SN3700, SN3410, SN3100
- All Mellanox devices running Mellanox OS 3.6+ or NVIDIA Cumulus Linux 4.0+
- 50G Ethernet & 50G InfiniBand configurations (PAM4 mode)
Technical Specifications
| Form Factor | QSFP28 (Quad Small Form-Factor Pluggable 28) |
| Data Rate | 50.125 Gbps (50GBASE-SR, PAM4 modulation) |
| Wavelength | 850nm VCSEL array (4 lanes) |
| Transmission Distance | 100m over OM4 multimode fiber, 70m over OM3 multimode fiber |
| Fiber Type | Multimode (OM3/OM4), 50/125μm |
| Connector | MPO/MTP-12 (female, key-up) |
| DOM Support | Full DDM / DOM monitoring (SFF-8636 compliant) |
| Operating Temp | 0°C ~ 70°C (Commercial) | -40°C ~ 85°C (Industrial - available upon request) |
| Power Consumption | <2.5W |
| Standards | IEEE 802.3cd, QSFP28 MSA, SFF-8636 |
Technical Details
| Modulation | PAM4 (4-level Pulse Amplitude Modulation) |
| Bit Error Rate | <1e-12 |
| Tx Power | -6.5dBm to -1.5dBm per lane |
| Rx Sensitivity | <-9.0dBm per lane |
| Eye Safety | Class 1 Laser Product (IEC 60825-1) |
| Digital Diagnostics | Full monitoring of temperature, voltage, Tx/Rx power, bias current |
| Hot Plug | Supported (per QSFP28 MSA) |
| Compliance | CE, FCC, RoHS, REACH |
Package Includes
- 1x OptiSolid 50G QSFP28 SR Module
- 1x ESD Anti-static Bag
- 1x Test Certificate (Mellanox compatibility verified with ConnectX-6 & SwitchX-2)
- 1x MPO/MTP dust cap set
Warranty & Service
- 5-Year Manufacturer Warranty
- 90-Day Free Returns (no compatibility issues guaranteed with Mellanox devices)
- 24/7 Technical Support (Mellanox firmware configuration help available)
- Ships within 24 hours on business days
- 3-5 Days Fast Delivery to US/EU via DHL/FedEx
Frequently Asked Questions
Q: Will this work with Mellanox ConnectX-5/6 without configuration?
A: Yes, 100% plug-and-play with Mellanox auto-negotiation and PAM4 detection.
Q: Will it show in Mellanox firmware as "unknown QSFP28"?
A: No, fully programmed for Mellanox — shows correct module information in Mellanox CLI (mlxconfig, mlxlink) and GUI.
Q: Can I use this module with OM3 fiber?
A: Yes, it supports 70m transmission over OM3 fiber and 100m over OM4 fiber.
Q: Is DOM monitoring supported in Mellanox devices?
A: Yes, all modules support full DOM/DDM monitoring via Mellanox interface.
Q: Will this work with Mellanox InfiniBand networks?
A: Yes, it supports both 50G Ethernet and 50G InfiniBand (EDR) modes.
Q: Does it support FEC (Forward Error Correction)?
A: Yes, it supports both FEC on (IEEE 802.3cd) and FEC off modes as required by Mellanox devices.
Legal Disclaimer
OptiSolid is an independent manufacturer. Not affiliated with, endorsed by, or sponsored by NVIDIA Corporation or Mellanox Technologies. All brand names, trademarks and model numbers are used solely for compatibility demonstration purposes.
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